Since the development of the gate, the identification methods used include: card swiping (including magnetic cards, ID cards, IC cards, various special-shaped cards, etc.), document scanning (ID cards, passports, military certificates, etc.), barcodes/QR codes, biometrics (fingerprints, iris, face), etc.
Card, certificate, barcode/QR code is the characteristics of the identification method is only the card, certificate, code, do not recognize people.
Advantages: Fast recognition, high success rate, and therefore fast passage speed
Disadvantages: If you forget to bring or lose the card/certificate/code, you will have no access rights, and this method does not identify the person itself, making it impossible to ensure that the card/certificate/code is consistent with the person. In addition, the card/certificate/code may also be stolen, which poses a great security risk to management.
The biometric identification method of fingerprints and iris is characterized by the identification of the biometric characteristics of the passing person, and the reliability is relatively high.
Advantages: Relative card/certificate/code recognition, eliminating the trouble of carrying these external media
Disadvantages: The collection of fingerprints and iris is easier, and the possibility of being camouflaged is greater, so there are certain loopholes in use. And the passage requires the active cooperation of pedestrians to verify.
The facial recognition method uses visible light to obtain face image information. During the movement of pedestrians, the camera can actively capture the facial information of pedestrians and quickly identify the passage authority of pedestrians.
Advantages: It can be verified in person, without coercion, without active cooperation, without contact, and the face is difficult to disguise.
The identification methods used by gates in different places are different. Some use a single identification method, while others use multiple combinations.
For example, the subway gate is commonly used for card recognition, and the customs channel gate uses a three-in-one recognition of face, certificate, and fingerprint. College gates can consider the combination of face and card recognition.
